First up will be the cast of Nickelodeon's "Victorious," including star Victoria Justice, on June 9. Guests also will be able to partake in a Q&A with the cast. The series, set in a performing-arts high school, recently won the Favorite TV Show award at the Kids Choice Awards, and the soundtrack "Victorious: Music From the Hit TV Show" hit No. 5 on the Billboard Top 200 Albums chart.

On June 16, ZZ Top ("Sharp Dressed Man," "Gimme All Your Lovin' ") will perform at Universal. The Rock and Roll Hall of Famers currently are working on a new album. Also on June 16, 3 Doors Down ("Kryptonite," "Be Like That") will perform.

Summer Concert Series performances are included in regular Universal Studios admission. Additional acts will be announced later, Universal says.